It’s heartbreak that Leafs fan hate to relive — the team’s devastating defeat to the Boston Bruins during last season's playoffs.

But Windsor social worker Mark Micelli and nine of his friends have preserved that pain for all to see after the 23-year-old uploaded a GOPro video to YouTube that captures their reaction to the Leafs losing Game 7 of their series against the Bruins.

“It’s been a fun experience, having Sports Illustrated over (last week) and doing a photo shoot,” Micelli said Monday. “Everyone was just in shock. I just uploaded it to show my buddies their reactions and show how funny it was. It just spread on its own.”

The video, which runs nearly three minutes, depicts 10 guys and three girls, almost all wearing Leaf shirts, intently looking at the television. After Toronto scores, everyone cheers and stands up. But their spirits sink after Boston scores goal after goal.

“After (Leafs centre Nazem) Kadri scored the 4-1 goal, we were talking about the next series and we would’ve played New York,” Micelli explained.

“And we were talking about going to Maple Leaf Square for the next series. We truly believed it was 4-1 with 10 minutes left, the Leafs had it locked up. And then to have it slip away so fast ... we were just stunned. How could this happen? It was more shock more than anger.”

Besides Sports Illustrated, the video made its rounds on Twitter, Facebook, Reddit and Deadspin Sports. It was also picked up by TSN Radio 1050 and NBCSports.com.

“People’s comments have been funny. Like my one buddy grabbing the chips every time Boston scored — it was almost like a stress-eating thing,” he said. “One of the head editors (of Sports Illustrated) was a Bruins fan and saw the video and thought it would be cool to figure out the backstory. He said it encapsulated what it was like to be a fan.”

One of his friends in the video — Ryan — met Kadri in a London, Ont., bar after the video went viral and was recognized by the hockey player.

“He told my buddy, ‘Oh, you guys are really big fans. We felt horrible after that game,’” Micelli said. “He was really cool about it and he ended up buying my friend a beer.”

Maple Leafs fans make Sports Illustrated with Game 7 loss video

It’s heartbreak that Leafs fan hate to relive — the team’s devastating defeat to the Boston Bruins during last season's playoffs.

But Windsor social worker Mark Micelli and nine of his friends have preserved that pain for all to see after the 23-year-old uploaded a GOPro video to YouTube that captures their reaction to the Leafs losing Game 7 of their series against the Bruins.